/* Organization */

html {
    /* Size */
    width:  100%;
    height: 100%;

    /* Layout */
    display:         flex;
    flex-flow:       column nowrap;
    align-items:     stretch;
    justify-content: flex-start;
}

body {
    display: contents;
}

h1 {
    /* Space */
    padding: 0;
    margin:  0;

    /* Layout */
    display:         flex;
    align-items:     center;
    justify-content: center;
}

textarea {
    margin: 1rem;
}

footer {
    /* Space */
    margin: 0 1rem;

    /* Alignment */
    text-align: right;
}

button {
    padding: 0.5rem;
}

/* Font */

html {
    font-family: sans-serif;
}

h1 {
    font-size: 1.25rem;
}

button {
    font-size:   1.1rem;
    font-weight: bold;
}

/* Theme */

html {
    background: #F8F8F8;
}

h1 {
    color: seagreen;
}

button {
    /* Color */
    color:      white;
    background: crimson;

    /* Border */
    border: Firebrick solid 1px;
    border-radius: 6px;
}

button:hover {
    filter: brightness(120%);
}

button:active {
    filter: brightness(95%);
}